CN1324075C - Process for coating to obtain special surface effects - Google Patents

Process for coating to obtain special surface effects Download PDF

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Publication number
CN1324075C
CN1324075C CNB038154757A CN03815475A CN1324075C CN 1324075 C CN1324075 C CN 1324075C CN B038154757 A CNB038154757 A CN B038154757A CN 03815475 A CN03815475 A CN 03815475A CN 1324075 C CN1324075 C CN 1324075C
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CN
China
Prior art keywords
coating
matrix
coated
polyester
fiber
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Expired - Fee Related
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CNB038154757A
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Chinese (zh)
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CN1665982A (en
Inventor
S·格克
G·哈特马赫
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EIDP Inc
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EI Du Pont de Nemours and Co
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Publication of CN1665982A publication Critical patent/CN1665982A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0004—Use of compounding ingredients, the chemical constitution of which is unknown, broadly defined, or irrelevant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D2/00—Special techniques in artistic painting or drawing, e.g. oil painting, water painting, pastel painting, relief painting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/507—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M17/00—Producing multi-layer textile fabrics
    • D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M17/00—Producing multi-layer textile fabrics
    • D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
    • D06M17/10—Polyurethanes polyurea
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2602/00—Organic fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels

Abstract

A process for coating substrates to produce surfaces which have a textile-like texture; the process comprises the following steps: a) coating fibers with a polymer dispersion based on one or more polymers selected from the group of polyurethanes, polyester polyurethanes, polyesters or mixtures thereof, b) blending the coated fibers together with the polymer dispersion to form a coating material and applying the coating material onto the surface to be coated and c) curing the coating material thereby forming a coating on the surface of the substrate; also, the process according to the invention relates to a coating material which is applied onto the substrate surface, comprising A) 5 to 40 wt. % of the polymer dispersion basing on one or more polymers selected from the group polyurethane, polyester polyurethane and polyester, having a solids content of 25 to 90 wt. %, B) 0 to 35 wt. % of one or more cross-linking agents, selected from the group of formaldehyde condensation resins and polyisocyanates, C) 2 to 20 wt. % of fiber material, D) 0 to 20 wt. % of solvent, E) 5 to 35 wt. % of water, and optionally, F) 0.5 to 10 wt. % of additives conventionally used in connection with coatings, pigments and/or extenders.

Description

The coating method that carries out in order to obtain specific surface effect
Background of invention
The present invention relates to the method for coated substrates, this method can form the surface with textile-like texture.
In order to produce fabric or fiber effects from the teeth outwards, the known binding agent that utilizes is handled filamentary material to produce matrix material, and wherein fiber is sneaked in the matrix.For example, DE-A 19921209 has described a kind of thermoplastic composite, this material contains organic fibre, particularly leather fiber and as the thermoplastic binder of matrix, wherein, make polymeric film by suitable working method subsequently, can this polymeric film be applied on the matrix surface by thermoforming process.
Fiber can be mixed with binding agent, to form fiber non-woven sheet or non-woven fibre moulding material.For example, in WO95/30034 and WO96/16218, described this method, wherein the organic or inorganic fiber has been handled with the binder powders mixture.
Described method or the thermoforming manufacturing that relates to by adding filamentary material are used for the polymeric film of coated substrates, or relate to manufacturing solidified fiber non-woven sheet or non-woven fibre moulding material, rather than make textile-like surface by coated substrates.
Also known fiber is inserted in the mould and by injection of polymer embeds the method for moulding material with them.Specific mould must be used for this reason, conventional injecting molding die can not be used.
Also known such method wherein is applied to non-woven fibre on the surface with binder layer, and is fixed in (flocking process) on this surface by cure adhesive.In this technology, utilize electrostatic flocking apparatus that the textile fibres that prescinds is applied on the surface that is coated with tackiness agent.In case should the surface dry or solidify, just obtained having the surface of fabric feeling, this surface is to the relative not too sensitivity with scratching of collision, and the sliding properties with respect to smooth surface that demonstrates.The feel that can change flocked surface by the length and the fiber thickness of each fiber of appropriate change.Spendable fiber for example is tynex, viscose fiber or cotton fibre, trevira and carbon fiber.The use of non-woven fibre can cause producing dust, and therefore produces labour hygiene problem and environmental problem.And, utilize conventional tackiness agent can not obtain specific surface effect, such as specific texture.
Summary of the invention
The invention provides the method on a kind of coated substrates surface, by simplifying technology, this method can overcome labour hygiene problem and environmental problem, and textile-like surface is covered with paint, lacquer, colour wash, etc. and the soft hand feeling effect has produced improved surface effect by obtaining.
Being used for the coated substrates surface may further comprise the steps with the method that obtains textile-like surface:
A) utilize polymeric dispersions to come coated fiber, this is dispersion-based to be selected from the polymkeric substance of urethane, polyester-polyurethane, polyester or its mixture in one or more,
B) coated fiber and polymeric dispersions are mixed together, forming coating material, and this coating material are applied on the surface to be coated, and
C) cured coated material has formed coating thus on matrix surface.
In the method for the invention, loose fibres is mixed with polymeric dispersions:, and utilize polymeric dispersions it coating with the fiber complete wetting by such method.Then utilize ordinary method that the fiber in the embedded polymer thing dispersion is applied on the matrix surface, then utilize ordinary method to make polymer cure.
Method of the present invention has formed the coating with improved surface properties, because avoided fiber getting loose from coated surface.Change the layer thickness of coating by mode according to the present invention, can obtain various optical effects, such as textile-like texture.
Detailed Description Of The Invention
Can be used for that fiber of the present invention comprises non-woven fibre, the blend fiber be made up of known materials is such as natural fiber, synthon, organic fibre and inorganic fibre.For example glass fibre, rock wool, trevira, acrylic fibers, polyolein fiber, wool fiber, cotton fibre, flax fiber or leather fiber etc.The preferred particularly cotton fibre of fabric fibre that uses is for example from the fiber waste-material of textile industry.
Employed polymeric dispersions is based on the mixture of urethane resin, polyester polyurethane resin, vibrin or these resins in the method for the present invention; The preferred urethane resin that uses.
For example, can make polymeric dispersions used in the present invention thus by utilizing organic solvent or water to disperse or dissolve or mixed polymer, for example utilizing water to disperse the neutral polymer of choosing wantonly fully.The water that randomly contains neutralizing agent also can be introduced at first, and mixes polymkeric substance by stirring.It also is feasible that successive is handled, that is to say, can known equipment such as the rotor/stator blender in, polymkeric substance, water and neutralizing agent are mixed simultaneously equably.Can promote it to change into water by elevated temperature.
For example, can make the polyol component (such as glycol) of straight or branched and one or more polymeric polyisocyanates (preferred vulcabond) reaction prepare polyester polyurethane resin and urethane resin by utilizing currently known methods.Polyol comprises those polyols well known to those skilled in the art, wherein, in order to realize the collateralization of polymkeric substance, can add a certain proportion of polyol with three or more functional group.Suitable polyol for example is low-molecular-weight polyol, and for example glycol, triol, polyvalent alcohol are such as ethylene glycol, propylene glycol, 1,6-hexylene glycol, 1,2-hexalin, dihydroxyphenyl propane and composition thereof.Also can use glycol derived from Fatty Alcohol(C12-C14 and C12-C18).The example of other polyol can be polyether glycol and polyester polyol.Polyether glycol for example can have general formula HO-(CHR 4) N-mOH, wherein, R 4Be hydrogen, randomly have various substituent C1-C6 alkyl, n=2-6 and m=10-50 or bigger, wherein a residue R 4Can be identical or different.For example, can come esterification organic dicarboxylic acid or its acid anhydrides, prepare polyester polyol thus by utilizing organic polyhydroxy compound.Dicarboxylic acid and polyol can be fats, alicyclic ring class or aromatics dicarboxylic acid and polyol.Dicarboxylic acid can be the long chain dicarboxylic acid with 18-60 chain carbon atom.Polyester preferably have 3000-6000 molecular weight, 20-400 the OH value and less than 3, preferably less than 1 acid number.Also can use polycarbonate diol as polyol, also can use polyester polyol derived from lactone as polyol.For example, can be by 6-caprolactone and glycol being reacted obtain these products, wherein the polylactone polyol is characterised in that and has terminal hydroxy group and derived from the repetition polyester unit of lactone.Lactone can be needed any lactone that for example has 6-8 ring-type carbon atom, or the combination of needed any different lactones.
Other compound that can be used as the use of polyol component for example is the silicone copolymers of the polythioether that contains OH-and/or SH-, the polyacetal that contains OH-, polyether ester, the polyesteramide that contains OH-and polymeric amide, dihydroxyl polyester carbonate, polyurethane diol, poly-(methyl) acrylate polyol, polyhutadiene oil glycol and hydroxy-functional.Preferred polyester polyol and the polyether polyhydroxy-compound that uses linearity.
Spendable organic polymeric polyisocyanate can be any fats, alicyclic ring class or aromatics and sterically hindered isocyanic ester, vulcabond for example, and these compounds also can contain ether or ester group.Also can use the isocyanate functionality polymeric polyisocyanate higher, for example the polymeric polyisocyanate of polymer than above-claimed cpd.Preferred isocyanic ester is that those contain the 3-36 that has an appointment, the particularly isocyanic ester of about 8-15 carbon atom.The example of suitable isocyanic ester is: hexamethylene diisocyanate, methylene phenylene diisocyanate, isophorone diisocyanate, hexane diisocyanate.Preferably oligomeric vulcabond.
The example of urethane and polyester-polyurethane is the Bayhydrole of Bayer A.G, for example Bayhydrol  LS2244 and Bayhydrol  LS2305.
Can make polyester in a conventional manner.Polyester that contains carboxyl and the polyester that contains hydroxyl can be used, and the polyester that does not have described functional group can be used.The quantity that can regulate carboxyl and hydroxyl by the kind and the ratio of the initial component of suitable selection.The polyol that is used to make polyester for example is glycol or more type or the component of an OH-functionality and the mixture of Geng Gao OH-functionality component of high functionality, such as TriMethylolPropane(TMP), tetramethylolmethane, ethylene glycol, polyether polyhydroxy-compound.The acid constituents of polyester preferably is low molecule dicarboxylic acid or its acid anhydrides of 2-18 by carbonatoms, for example phthalandione, four phthalandiones, hexanodioic acid, sebacic acid, toxilic acid, methylene-succinic acid, 1, and the 4-cyclohexane dicarboxylic acid is formed.Also can use methyl ester.Except above-claimed cpd, also can use dicarboxylic acid that higher functionalized carboxylic moiety replaces such as carboxylic acid, for example trihemellitic acid, dimethylol propionic acid or the alkyl of trifunctional such as the butyl m-phthalic acid.The average molecular mass Mn of suitable vibrin (utilizing polystyrene to measure as calibration substance) is for example in the scope of 1000-6000.
Can use various types of compounds separately, or use described compound with two or more form of mixtures.
If containing, polymkeric substance of the present invention can form the ionic group, then utilize suitable compound described integrated group or part to be converted into corresponding salt, wherein must be noted that and guarantee that the selected compound that is used to form salt is chemically inert in building-up process such as neutralizing agent.The formation ionic group that can exist is that those can form anionic group.At this moment, for example amine, preferred tertiary amine are converted into negatively charged ion such as trialkylamine with it can to utilize alkali.Form cationic group if polymkeric substance contains, can preferably use one or more acid to form ion.Suitable acid for example is phosphoric acid or acid phosphoric acid ester or organic carboxyl acid, hydroxycarboxylic acid or dicarboxylic acid.Also can use the mixture of acid.Can form anionic group for example is carboxyl, phosphoric acid, sulfonic acid group.Can be converted into cationic basic group and for example can be primary, the second month in a season and tertiary amine groups or  ion ratio such as quaternary ammonium, phosphine  and/or uncle's sulfonium group.
Can use can be used for polymer dissolution of the present invention or being blended in the solvent.Spendable solvent is water-miscible solvent or water unmixability solvent.The example of suitable solvent is one or polyhydroxy-alcohol, glycol ether or ester, ethylene glycol, ketone, aromatic hydrocarbon or aliphatic hydrocarbon, alkyl pyrrolidone, ether and novel cyclic urea derivatives.
By adding an amount of water, can contain or not solvent-laden polymeric components is converted into water of the present invention.Then can obtain average particle size particle size for example＞10 and＜2000nm, preferred＞50 and＜the homodisperse binder ingredients of 500nm.Solids content is 25-90.wt.%, is preferably 35-60.wt.%.
In the present invention, do not need usually to utilize emulsifying agent to make polymkeric substance be converted into aqueous dispersion, but can use emulsifying agent.The example of suitable emulsifying agent is the emulsifying agent of being convenient to emulsification and can randomly reducing the ionogen number.
If desired, can be by distilling, for example under negative pressure, distill the solvent of removing optional existence in the polymeric constituent of the present invention.
Can carry out self cure/physical dryness or outside crosslinked to polymeric dispersions.
Polymeric dispersions can contain linking agent, pigment, other tackiness agent and randomly with the additive of certain amount of solvent coexistence.
Can use various linking agents, such as the formaldehyde condensation resin polymeric polyisocyanate of phenol/formaldehyde condensation resins and amine/formaldehyde condensation resins and sealing for example.The aminoresin that is suitable as linking agent for example is alkylating condensation product, and this product prepares by making aminotriazine and amide group triazine and aldehyde reaction.Houben-Weyl, Methoden der organischenChemie, 663, the example of described resin and product thereof has been described among the P355.Also can utilize end capped isocyanic ester as linking agent.These compounds can be needed any isocyanic ester, wherein isocyanate groups and compound reaction, so that the polymeric polyisocyanate of resulting sealing at room temperature with the reaction of hydroxyl and water, but under the intensification condition, such as reacting with it in the about 250 ℃ temperature range of about 90-.Also can use untight polymeric polyisocyanate.Also can use fats, alicyclic ring class or aromatics and the sterically hindered isocyanic ester that has living space, also can use polymeric polyisocyanate, for example vulcabond that contains ether or ester group.Preferred isocyanic ester is that those contain the 3-36 that has an appointment, the particularly isocyanic ester of about 8-15 carbon atom.The example of suitable isocyanic ester is: hexamethylene diisocyanate, methylene phenylene diisocyanate, isophorone diisocyanate, hexane diisocyanate.Preferably oligomeric vulcabond.Also can use the functionality polymeric polyisocyanate higher, for example the polymeric polyisocyanate of polymer than above-claimed cpd.
Linking agent can be used alone or use with the form of mixture.
Polymeric dispersions of the present invention also can contain one or more other tackiness agent.For example, when obtaining specific synergy, this is favourable.The example of other tackiness agent is a conventional film-forming resin well known in the art, for example polyacrylate resin and/or other urethane resin.These resins can be reactive or non-functionalized resin.
Polyacrylic ester can contain the free carboxyl, and for example can be the acrylic or methacrylic acid copolymer.The amount of resin of being added can account for the 0-50wt.% of whole resin solid content, preferred 0-25wt.%.Term " solids content of resin " is meant and does not comprise the total amount of linking agent component at all interior tackiness agents.
Polymeric dispersions used in the present invention can contain additive, for example rheological agent, thickening material, anti-sedimentation agent, leveling agent, photostabilizer, foam preventer, wetting agent and coupler.
Optionally use catalyzer,, still, also can utilize heat energy and do not use catalyzer to solidify quicken to solidify.
The suitable solvent that can exist is conventional coating solvent, and it can derive from the manufacturing of tackiness agent, or adds solvent separately.The example of this solvent is one or polyhydroxy-alcohol, glycol ether or ester, ethylene glycol, ketone, aromatic hydrocarbon or aliphatic hydrocarbon, alkyl pyrrolidone, ether and cyclic urea derivatives.Can influence the mobility and the viscosity of application composition by selective solvent, and the evaporation behavior meeting of application composition is subjected to the influence of employed solvent mixture boiling point.
Polymeric dispersions used in the present invention can contain one or more the inorganic and/or pigment dyestuffs that can give colour or certain effects and optional other extender that adds.The pigment that can give certain effects is metallic pigment, such as aluminium, copper or other metallic pigment; Coated interference pigment is such as the metallic pigment of metal oxide-coated, the mica and the graphite special effect pigment of coating.Pigment and the extender that can give color effect are titanium dioxide, iron oxide pigments, carbon black, silicon-dioxide, barium sulfate, talcum, kaolin, chalk, azo pigment, phthalocyanine pigment.Many in these pigment all can add in the application composition by utilizing ordinary method.For example, can give the pigment of certain effects with the form adding of the commercially available moisture or non-water paste of routine.For example, can add tinting material or extender, wherein, can in the paste resin of specific water-dilutable, grind by in aqueous binders, grinding in certain proportion.
Coating material based on polymeric dispersions and filamentary material of the present invention comprises:
A) polymeric dispersions of 5-40wt.%, the solids content of this dispersion is 25-90wt.%, these dispersion-based one or more polymkeric substance in urethane, PAUR and polyester,
B) one or more linking agents of 0-35wt.%, this linking agent is selected from formaldehyde condensation resins and polymeric polyisocyanate,
C) filamentary material of 2-20wt.%,
D) solvent of 0-20wt.%,
E) water of 5-35wt.% and optional
F) routine of 0.5-10wt.% applies with additive, pigment and/or extender.
A kind of preferred embodiment in, described filamentary material is selected from polyacrylonitrile fibre, viscose fiber, cotton fibre and polypropylene fibre.
Can utilize ordinary method to use coating material of the present invention, preferably use by the build that is ejected into 8-500 μ m.Preferred utilize wet go up that humidification process is used and for example 20-140 ℃ dry or crosslinked down.
Coating material of the present invention can be used in the laminated coating, and can brush for example transparent coating in the above.Normally any known Clear paint of suitable Clear paint or transparent painted application composition.Application composition used in the present invention can be used to contain or do not contain the Clear paint of transparent pigment.Not only can use the application composition of one or both components that contain solvent, and can use the Clear paint of the Clear paint of water-dilutable, Powdered Clear paint or radiation-hardenable.
Can laminated coating be applied on the matrix by variety of way.For example, plastics priming paint be can on plastic substrate, provide, polymeric dispersions of the present invention and curing then applied thereon.Generally before applying transparent top-layer, also can polymeric dispersions of the present invention be applied on the uncrosslinked packing layer, and then it be baked with packing layer by the wet humidification process of going up.
Also can not apply other middle layer and directly coating material of the present invention is applied on the matrix.
In an embodiment of the invention, the present invention relates to a kind of method that forms the multiwalled coating on matrix, this method comprises and applies undercoat and Clear paint layer, and solidifies the step of described layer; Wherein one deck comprises the coating composition that is grouped into by following one-tenth basically at least:
A) polymeric dispersions of 5-40wt.%, the solids content of this dispersion is 25-90wt.%, this dispersion is selected from least a polymkeric substance in the group of being made up of urethane, PAUR, polyester and composition thereof,
B) at least a linking agent of 0-35wt.%, this linking agent is selected from formaldehyde condensation resins and polymeric polyisocyanate,
C) filamentary material that is coated with polymeric dispersions of 2-20wt.%,
D) solvent of 0-20wt.%,
E) water of 5-35wt.%, and optional
F) component of 0.5-10wt.%, this component are selected from paint additive, pigment, extender and any mixture thereof.
This method a kind of preferred embodiment in, wherein polymkeric substance is a urethane.
In another preferred embodiment of this method, wherein filamentary material is selected from polyacrylonitrile fibre, viscose fiber, cotton fibre and polypropylene fibre.
This method another preferred embodiment in, wherein said undercoat comprises the coating composition of the pigment that further contains 0.5-10wt.%.
Also having of this method a kind of preferred embodiment in, wherein said Clear paint layer comprises coating composition.More preferably, the coating composition of wherein said Clear paint layer comprises the transparent pigment of 0.5-10wt.%.
Also can for example it can be applied on the undercoat that color is provided with coating material of the present invention as the moisture top layer in the laminated coating.Suitable undercoat generally can be any known undercoat.Not only can use the application composition of one or both components that contain solvent, and can use the undercoat of water-dilutable or the undercoat of radiation-hardenable.Equally also can this laminated coating be applied on the matrix by variety of way.Plastics priming paint can be provided on plastic substrate, then apply undercoat and curing thereon.Generally before applying transparent top-layer, also can undercoat be applied on the uncrosslinked doubling layer by the wet humidification process of going up, and then with it with the roasting of doubling layer, can apply polymeric dispersions thereon then and be cured.
The suitable matrix that is used to apply coating material of the present invention is the part that automobile-use part, the especially interior of motor vehicles of the matrix, particularly plastics made by metal, plastics, concrete, timber and film (plastic film, cardboard) used.
When making multilayered structure, realized extraordinary interlayer adhesion.Laminated coating of the present invention has satisfied nowadays to motor vehicle coating, particularly coating plastic, the especially conventional demand of coating machine motor-car part.
The invention further relates to the matrix that is coated with coating material of the present invention, optional combine with multilayer system, and on matrix drying and solidified coating.
Can be by applying at least a primer base (being preferably based on the application composition of water-dilutable), apply the primary coat that contains coating material of the present invention and color can be provided layer by layer, randomly make undercoat dry and apply clear-coated composition as top layer, heat coated matrix then, obtain multilayer system thus.Can randomly in this laminated coating, apply other extra play.Also can omit priming paint.
Also can be by applying at least a primer base (being preferably based on the application composition of water-dilutable), the primary coat that conventional provided color is provided layer by layer, randomly make the undercoat drying, and apply contain coating material of the present invention the clear-coated composition as top layer, heat coated matrix then, obtain multilayer system thus.Can randomly in this laminated coating, apply other extra play.Also can omit primer base.
The surface effect that laminated coating of the present invention demonstrates, and have extraordinary interlayer adhesion.Particularly, the coating material of the application of the invention can obtain having the surface dressing of the soft appearance of pleasant, and this surface dressing is specially adapted to the surface dressing of the motor vehicle parts of plastics of interior of motor vehicles.In addition, nowadays the matrix that utilizes laminated coating to handle has satisfied the conventional demand that the parts of plastics to plastic coat, especially interior of motor vehicles applies, and this laminated coating for example demonstrates outstanding shrinkproof result, and do not show the adherent loss.
The matrix that utilizes the inventive method to apply can be used for most various purpose.For example, can utilize coating method of the present invention to apply and be used to the purpose that insulate, such as sound insulation and heat-insulating matrix.In addition, method of the present invention can be used for for example being equipped with matrix in order to obtain specific acoustic characteristics according to the various requirement relevant with acoustic performance.At last, method of the present invention is used in provides attracting decorative finish on the matrix surface, and reaches specific texture character, for example softish outward appearance.The matrix that utilizes method of the present invention to apply is easy to clean and very durable, that is to say, coating demonstrates longer work-ing life when keeping needed character.
Following embodiment will explain the present invention.Except as otherwise noted, all mark and percentage ratio are all based on weight.
Embodiment
When stirring, polyurethane dispersions (based on Bayhydrol  LS 2305) that the OH-of the polysiloxane solution as flow improver additive of the air release agent (deaerator) of 3wt.%, 6wt.%, 20wt.% is functionalized and the acrylic thickener of 3wt.% add in the functionalized polyurethane dispersions (based on Bayhydrol  LS 2305) of the OH-of given 30wt.%.After having obtained uniform mixture, the long viscose fiber of the 0.5-2mm with 15% adds in this mixture in batches.In order to regulate the viscosity of mixture, when stirring, add the deionized water of 15wt.%.Made this material homogenizing subsequently about 20 minutes.
Before being about to begin coating processes, in the above polyurethane dispersions composition for preparing of the HDI solution as solidifying agent (hexamethylene diisocyanate solution) adding with 15wt.%, homogenizing is 10 minutes under 1000rpm.
Subsequently, by on frosting, carrying out intersecting for 3-4 time the injecting step that applies (cross-coat), carry out coating processes thus.
Obtained surperficial good hand touch, smooth in appearance and stable coating, and do not had fiber getting loose from coatingsurface.

Claims (11)

1. the method on a coated substrates surface may further comprise the steps:
A) utilize polymeric dispersions to come coated fiber, this is dispersion-based at least a polymkeric substance that is selected from urethane, PAUR, polyester or its mixture, forming coated fiber,
B) coated fiber is mixed with polymeric dispersions, to form coating material, this coating material comprises:
1) polymeric dispersions of 5-40wt.%, the solids content of this dispersion is 25-90wt.%, this dispersion is selected from least a polymkeric substance in the group of being made up of urethane, PAUR, polyester and composition thereof,
2) at least a linking agent of 0-35wt.%, this linking agent is selected from formaldehyde condensation resin and polymeric polyisocyanate,
3) the coated filamentary material of 2-20wt.%,
4) solvent of 0-20wt.%,
5) water of 5-35wt.%, and optional
6) component of 0.5-10wt.%, this component are selected from paint additive, pigment, extender and any mixture thereof;
C) this coating material is applied to matrix surface, and
D) solidify this coating material, on matrix, to form veined surface.
2. the process of claim 1 wherein that polymkeric substance is a urethane.
3. claim 1 or 2 method, wherein filamentary material is selected from polyacrylonitrile fibre, viscose fiber, cotton fibre and polypropylene fibre.
4. method that forms the multiwalled coating on matrix, this method comprise and apply undercoat and Clear paint layer, and solidify the step of described layer; Wherein one deck comprises the coating composition that is grouped into by following one-tenth basically at least:
A) polymeric dispersions of 5-40wt.%, the solids content of this dispersion is 25-90wt.%, this dispersion is selected from least a polymkeric substance in the group of being made up of urethane, PAUR, polyester and composition thereof,
B) at least a linking agent of 0-35wt.%, this linking agent is selected from formaldehyde condensation resins and polymeric polyisocyanate,
C) filamentary material that is coated with polymeric dispersions of 2-20wt.%,
D) solvent of 0-20wt.%,
E) water of 5-35wt.%, and optional
F) component of 0.5-10wt.%, this component are selected from paint additive, pigment, extender and any mixture thereof.
5. the method for claim 4, wherein polymkeric substance is a urethane.
6. the method for claim 4, wherein filamentary material is selected from polyacrylonitrile fibre, viscose fiber, cotton fibre and polypropylene fibre.
7. the method for claim 4, wherein said undercoat comprises the coating composition of the pigment that further contains 0.5-10wt.%.
8. the method for claim 4, wherein said Clear paint layer comprises coating composition.
9. the method for claim 8, the coating composition of wherein said Clear paint layer comprises the transparent pigment of 0.5-10wt.%.
Claim 1,2 and 4-9 in any one method, wherein matrix is selected from metal, plastics, concrete, timber, plastic film and paper film.
11. according to claim 1,2 and 4-9 in any one method apply and the solidified matrix, wherein matrix is the parts of plastics of interior of motor vehicles.
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